Liquid fuel burner



Nov. 1, 1932. T. DAvls 1,885,688

` LIQUID FUEL BURNER Filed May 24. 192'? 2 Sheets-Sheet l Nov. 1, 1932.T. DAvls LIQUID FUEL BURNER Filed May 24, 1927 2 SheelS-Sheer, 2

v /l /l/ LEU Q/ Patented Nov. 1, 1932 UNITED IsTATEsi izwr'r TRAxHA-RNDevis, 0F LOMITA, CALIFORNIA, As'sIeNonhoF ONE-Hanf* To JUiIUs inBECKER, or SAN FRANCISCO, CALIFORNIA LIQUID FUEL BURNER Y*Applicationmed May 24,

dling crude oil, and the like.

It isa general object of this invention to provide an eective andimproved mounting and control for an oil burner, or the like.

Another object of this invention is to provide improved features ofconstruction for oil burners whereby the oil is handled vin an effectiveand practical manner.

Another object of this invention is vto provide an oil burn-er includingan improved mounting for the rotating element.

It is'another object of this invention to provide a burner of thecharacter mentioned in which the bearing for the rotating element isprotected against dust or other foreign matter. Y

It is a Vfurther object of this invention to provide a burner of thecharacter mentioned in which the bearing for the rotating elementoperates without being subjected to the pressure of the air used inoperating the burner.

The various objects and features of the in-l vention will be best andmore fully understood from the following detailed descrip-w tion of atypical form and application of the invention, throughout whichdescription reference is had to the accompanying drawings, in which:

'l F ig. 1 is a side elevation of the construction provided by thisinvention showing the burner in operating position; w

l Fig. 2 is a view similar to Fig'l showing the burner down or out ofoperating position; s

Fig. 3 is aplan view of the parts shown in Figs. 1 and 2;

tional view of the'burne'r proper provided by this invention; and

Fig. 5 is a detailed, transverse, sectional view taken as indicated byline 5 5 on Fig. 4.

The,construction provided by this invention includes, generally, a basev10, a vertically movable burner 11, a guide ring 12 to guidev and stopthe burner in operating or ring position, supports 13 whereby ythe guidering 1,927. serial iva-193,763. i

12 is supported from the base 10, and means 141 for operating or movingthe burner.

In the particular construction illustrated in thedrawings, the basev101s adapted to be' arranged on a hori.zofntal support andjis in' theform of a casting designed to be secured to: the horizontal support andprovided with parts for suitablycarrying the other-elements of theconstruction. The supports 13 for the guide ring 12 extend verticallyfrom the base and support the guide ring 12 in a horizontal positionabove'the base. rIhe supports'may vary in number and formation; Forpurpose of example, I have shown three supports 13 in the form of rods,having their lower ends carried by the base 10 `and their upper endsYVfinished to receive and hold the guide ring 12. lThe guide ring 12 ismade sufficiently large to pass the upper end portion ofthe burner 11and is provided lwith an inwardly extending flangepartl which(io-operates `with a v pivotally mounted'on the base 10 at a pointremoved from'the supports 13v` and guideslS,

a bellcrank 26 having one arm connected with the burner and the otherarm connected with the lever 25 through a link'27. Springs 28,

are provided on the `guides 18 between the -V burner and base tonormally yieldingly hold Fig. l is an enlarged, detailed, vertical,secthe burner in the up or operating position. A latch 29 is provided inconnection with the operating lever 25 for releasably setting the y theburner v which carries the rotor D. The lower portion 31 of the openingin the head B extends up# wardly and inwardly from the upper end of,

the body A to a middle or. neck part 32 of reduced diameter. The upperportion 33 of the opening extends or diverges upwardly and youtwardlyfrom the neck: 32 in the manner clearly shown in Fig. 4.

' The head C at the lowerend of the body A is in the form ofi a plateapplied to the lower; end of the body A to close it. In the constructionillustrated in the drawings, tie-bolts 34V extendv between the lheads Band C to clampv the heads tightly to the ends of the body. In thearrangement shown in the drawings, the

.tie-bolts 34 extend between the heads B and C within the body A. y

A central post 36 is carried by the head C to project upwardly intothebody A to form a carrier or support forsuitable bearings 37.

The bearings 37 rotatably support a sleeve 38 which extends over orsurrounds the post 36.

The spindle'E, which carries the rotor D, isV

arranged above the post 36 and is provided at its lower end with anenlargement 39 which is screwthreaded to the upper end of the sleeve 38.By this construction,the spindle E is rotatably supportedconcentric withthe body A and head B. In accordance with this,

invention, a housing 40 extends upwardly from the head C aroundthesleeve -38 and over the enlargement 39 on the Vstemforrning Y flange 46at the mouth of the cup.A Y A disc' a chamber 41 around the bearings tocarry lubricating oil. The top 42'of the housing is provided with acentral opening which freelypasses the spindle E. A suitable` oil supplypipe 44 extends through one sideof the body v A and connects into thehousing 40 to supply lubricating oil to the chamber 41. With thisarrangement, the bearings 37, supporting the spindle, operate in a bathof oil held by the housing 40. Y Y,

4'Ihe` rotor D includes, generally, an upwardlyopening cup 745, a`flange 46 projecting outwardly in a radial direction from the mouth orrim of the cup, and a mounting whereby the cup is carried by the spindleE. The spindle E proj ects upwardlythrough the bottom of the cup toabout the level of the 48 is fixed on the upper end of the spindle E andcarries a ring 49 havingja pluralityof spaced arms 50 projectingdownwardly from it. The arms 50 carry a second ring 51 spaced below thering 49. An annular flangeV 52 projects upwardly from the bottom of thecup and is secured to the ring 51 by a suitable coupling member 53. Theside wall of the cup diverges upwardly so that the cup is considerablylarger at the mouth than at the bottom, as clearly shown in Fig. 4 ofthe drawings. VThe cup is proportioned ,and related with'reference tothehead B so' that its side Awall is spaced a substantial distance from theneck 32 of the opening inthe head,

' while the flange 46 at lthe mouthof 'the cup is spaced somewhat abovethe upper end of the head. A plurality of vanes or blades 'are providedon the exterior of the cup between the flange 46V and the side wall toprol ject outwardly from the cup to fit the neck part 32 and outer partl33of the vQpe'ni-nglin the head` vwith workingclearance.- It is to beunderstood, of course, that theblades 60- inay be pitched or shaped s othat they cause rotation of the rotor D 4upon air being vdelivered tothe body A so that itis forced up- Wardly in the body to dischargethrough the.v the rotor and be:.`

head Bk around the cup of tweenfthe blades.- Y i A fuel supply pipe 65extends Vinto one side of the body A and is connected with averticallydisposed. tube 66 which extends.

upwardly around they spindle `E with substantial clearance to a pointoppositethe arms.

50. In the form of construction illustrated in the drawings, the tube 66projects upwardly from the top 42 of the housing L40, infact,

is formed integral withgthe top42 of the housing. An outwardly.extending flange 70 is provided at the upper end of the tube .66 todirect fluid overflowing from the top of the tube outwardly yto passbetween the arms 50 into thecup 45. In the preferred arrange:

ment, the fuel tube 66 extends freely through the bottom of the cup ofthe rotor in the manner shown in Fig. 4 of the drawings. For the purposeof krcatching any 'liquid that may find its way out of the bottom rof`the cup, a

flange .71 extends upwardly from theltop 42 ofthe housing 40 .around thelowerend por-r tion of the cup forming a catch ibasin. ...Ai suitabledrain pipe 7 2 connects into this catch basin inthe mannerclearly`shownin of the drawings..

ingftube extends upwardly'froni the top 42 ofv thelhousing 40 around-thespindle to a point above the top of the fuel tube 66.`-

The shielding tube 8O1ts around thesp'indle E with clearance and fitswithin the fuel tube 66` with clearance. The tube 80 shields the.spindle so'that-the liquid fuel introduced through the pipe 65 does notfind its-wayintd the .housing 40. Further, the tubef` 80, .in openingwithin the cup, protects the bearing against pressure 'fromair currentsformedby the burner when the device is in operation,-

the reasonbeing that the top of tube 80 is well above the top of fueloil tube 66. In the' preferred construction, an over-hanging or Inaccordance with my invention, a' shieldf i downwardly extending lip 85isprovided on the under side of the disc 48 to extend downwardly aroundthe upper end of the shielding tube 80, protecting the upper end of thetube.

F rom the foregoing description, it is'believed that the operation ofthe burner Will be fully understood. For instance, when the burner is inoperating position, as shovvn in Fig. 1, air is introduced into the bodyA of the burner through the opening 30 While liquidfuel is introducedthrough lthe pipe 65. The air, in discharging through the head B, causesrotation of the rotor D so that the liquid fuel overflowing from thetube 66 is carried to the mouth of the cup to discharge over the flange46 and mix YWith the air discharging from the under sideof the flange46, giving 'an effectivev mixture of fuel and air for combustion.

Having described only a typical preferred form of my invention, I do notWishto limit myself to the specific details set forth, but Wish toreserve to myself any changes or variations that may appear to thoseskilled .i in the art or fall Within the scope of the following claims:

Having described my invention, I claim:

l. A burner of the character described including a. body having a headclosing one end, a post projecting into the body from the head, aspindle, a bearing rotatably mounting the spindle on the post, a cupcarried by the spindle, a. housing projecting from the head.

around the bearing, anda fuel supply conduit carried by the housing toextend around the spindle and into the cup.

2. A burner of the character described including a body having a headclosing one end, a post projecting into the body from the head, aspindle, a bearing rotatably mounting the spindle on the post, a cuphaving an opening in its bottom toI pass the spindle, spaced armssupporting the cup from the spindle, and a fuel supply conduit extendingaround the spindle and into the cup.

In Witness that I claim the foregoing I have hereunto subscribed my namethis 19th day of May, 1927. l

' TRAYI-IARN DAVIS.

